Edge-finishing machine.



No. 829,350. PATENTED AUG. 21,1906,

' L.'ONDERDONK.

EDGE FIINISHING MACHINE.

' APPLICATION FILED JUNE 4, 1901.

4 SHEETS-SHEET'I.

- No. 829,350. PATENT/EDAUG; 21, 1906.

' L. ONDBRDONK.

EDGE FINISHING MACHINE.

APPLICATION FILED JUNE 4, 1901.

4 sums- 2.

I mwmm I PAT'ENTED AUG. 21, 1906.

L. OINDERDONK;

EDGE FINISHING MACHINE.

APPLICATION FILED J E 4, 1901.

' 4 SHEETS-SHEET a.

To all whom zit-may concern:

i f UNITED strATEs LANSING oNnERDo-NK, or New YORKQN: Y.," ss'1eNo TO THE UNION PATENT i OFFICE.

SPECIAL SEWING MACHINE 'CQMPANY, OF CHICAGO, ILLINOIS, fA'

CORPORATION OF ILLINOIS.

soes-Fmlslime. MACHINE.

Specification of Iiette'rs IEatent. hpplioatlon filed June 4', 1901-. sem N6, 63,079.

Patented Aug. 21,1966.

Be it known that I, LANSING ONnnRnoaK,

' a citizen of the United States, 'residmgat New York, in the county of New York, State of New York, have invented certain newand usefulImprovements in Edge-Finishing Machines, of which the following is a dflSCI'iP"' ,tion, reference being had to the accompanying drawings; and to the marked thereon, V

My invention relates to an rovement in sewing-machines, and particu arly to machines for finishing the edges of fabrics, theletters of reference object being to provide a-seWing-machine making a stitch'which' shall be ornamental,

' elastic, and serviceable in binding or finishj pended claims, and it is illustrated intheac ing the edges of cut-knit goods orother fabrrcs, which machine shall be capable of run: mng at a high rate of speed with minimum amount of noise andi'riction and in which the movements of the stitchforming implements shall be simple forward and backward short movements with no complex. sidewise ;or oscillatory movements.

The invention consists in the matters here: inafter described, and referred to in the apcompanying drawings, in Which- Figure 1 186 side e evationof a sewing-machine embodying my. invention, the workof the same with 'the bed-plate and parts above the same removed; Fig. 3 is a top I plan yiew-of'the gooseneck and tension devices for the upper thread. Fig. 4 is a detail view of the thread pull-off and upper end-of the needle-bar. Fig. 5 is a detail view,- artly in section, of the driving connections or operating the thread-carrying looper.

Fig. 6 is-a sectional view showing the feeddog-operating mechanism and the loopersupporting journal; Fig. 7i's a sectional enlarged .view of the looper-sup orting shaft vand'journal. Fig. 8' is a detai view of the looper. Fig. 9 is a detail sectional view of the guiding eye and controller for the loo er- '0 tion of the stitch made on thismachiiie."

thread; Figs. 10, 11,'and 12 are views il ustratin in succession the steps in the formation o the stitch; and Fig, 13 is an'illi str'a- In the drawings, A represents the bedlate, B the goosene'ck,"G the needle 5 lever,

e Y sha t. q ne l-b F Union Special sewing-machme ofusual con-' structionl the, feed-dog bar, and G the presser-foot,lof a Thenovelifeatu-res of the resent-machine reside in the mechanism or formingthe.

stitches, and this will-now be described,-the

needle a '-f ormihg' onefof the cooperative elefrom the nee le-le'v'ei Cfland carrying the thread b) i Upon the dri g-shaft D is arranged 'the eccentric H, embraced by the eccentric-strap 1 0 merits, i't bein driven in the usual manner c, to which is secured the rod d, havinga head a at its opposite end-clampedover a ball-stud f, clamped .to an upright on the short arm 9 of the lever I,'pi voted at h to the bed of the machine and extending diagflo nally across the bed of-the machine beneath the shaft D-and having an upturnedforward end 21,- to which is screwed a ball-stud .k.

The tread carrying looper-L is :preferably of the shape shown in the various figures, and

its shank is secured by the set screw m into the enlarged head n of the shaft M, which is vjournaled in the clam beari'ng-=N, formed with or "attached to t e machine-bed; At,

its opposite end from the -head 'n, the shaft M a is provided with a collar'o, formed withan arm or projection '19, into which is screwed the late, and all joints being free there will be no- .endof a ball-stud qfa link 1' embracing-this ball q'and also the ball on the-studk, before referred to. The positions of the various bind. Thi's looper L has an eye inits point and has a springs at the heel, Wherebyit is (See Fig; 8.) An ad-' coeperates with the looper to regulate the I slack in the lower thread and "the amount pulled off from the s. 001/ H I v To make'the stitc illustrated in Fig. 13, an other element cooperating with the'needle and looper-is provided b me.-namely,what

may be called -a lneed e-loopf s reader or carrier, which passes-into the nee e-loop be.

Ibo

low the fabric and draws it to one side and own thread through said needle loop. Th s pivoted inthe conical spreads it to allow-the looper to carry 10 ugon the machine frame, and projecting downwardly from said.

' sleeve T- is an arm it, having a ball-joint co'n' nection with the pitman V, driven from the needle-lever extension.

The manner in which the stitch is formed v on this machine is illustrated in Figs. to

- looper L carrying its thread oscillates for-' ward and passes through the loop, carrying its own thread up over the edge of the fabric and forming a loop, as shown in Fig. 12,

through which the needle in its next descent passes, making the stitch shown in Fig. 13.

The looper is preferably of the shape shown in order to properly engage the spread needleloop, and yet carry its own thread up over the edge. in position'to be engaged by the needle, and. the path of the looper is at all times in front of. the needle and oscillates back and forth on its axis without any sidewise or other complexinovements'. So, also, the spreader S has a simple. forward and backward oscillation on its axis just sufficient to spread the needle-loop to allow the looper to pass through it on its way up over the edge of the fabric. The controller for the upper thread comprises the stationary thread-eyelets 1 2 on the machine ooseneck and the hook 3, traveling up and own with the needle-bar in a plane between the stationary eyelets. In order that the threadcarrying looper may properly pass through the 'needle-loo spread by the spreader and pass the need. e diagonally relative to the ine offeed, and thus carry its thread back of the path of the. needle, in order that the a needle may properly engage. the loopers endwise.

thread, the axis of the thread-carrying looper isdoubly inclined-that is, one incline being relative to the line of feed and the other incline relative to the plane of the throat-plate The axis of the spreader is such that the spreader will travel sufficiently diagonal relative to the axis of the thread-carrying looper that it will engage the needlethread, carrying it across the path of the looper, the thickness of the spreader spread ing the loop of the needle-thread sufficiently for the thread-carrying looper to pass through it. The double incline of the thread. carrying looper insures a more positive placing of its thread in position where the needle will engage it in its descent than possible traveling only on one incline. The spreader also acts as a take-up. It is constructed to take up the-slack thread of the first stitch in making the second. Also the thread-carrying loope is capable of wholly taking up its thread in substantially the same manner that is, the slack thread of the first stitch on the succeeding stitch by the heel of the v sea-e50 thread-carryin looper passing by a stationary thread-eye et located-about midway between the two extremes of the loopers throw at the heel, or, in other words, so arranged. that the heel of the looper passing by the thread-eyelet a little more on the upstroke than on the back stroke, or vice; versa, ac:-

cording to the time it is desirable'to draw thethread or set the stitch. The arrangement on the needle-bar is only secondary.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is a 1. In a sewing-machine, the combination with a-reciprocatingneedle, a thread-carrying looper with means for oscillating said looper in front of the needle from a point below the fabric over the edge thereof to lay its thread in positionto be engaged by the needle, and a loop-spreader with means for oscillating it entirely below the fabric to e'ause it to engage the needle-loop below the fabric and carry it to a point where the looper in its upward movement will pass therethrough, said looper being mounted upon an oscillating support'whose axis is inclined relative to the line of feed, and also to the plane of the throatplate, whereby the'thread carrying looper may properly pass through the needle-loop s read by the spreader, and pass the needle iagonally relative to the line of feed, and thus carry its loop into the path of the needle.

2. In a sewing-machine, the combination with a reciprocating needle, a thread-carrying looper with means for oscillating said looper in. front of the needle from a point be-' low the fabric over the edge thereof to lay its thread in position to be, engaged by the needle, and a loop-spreader with means for oscillating it entirel below the fabric to cause it to engage the needle-loop below the fabric and carry it' to a point where'the looper in its upward movement will ass therethrough, said looper being mounte upon an oscillating support whose axis is inclined relative-to the line of feed, and also to the plane of the throat-plate, whereby the thread-carrying looper may properly pass through the needleloop spread by the spreader and pass the needle diagonally relatiye to the line of feed, and thus carry its loop into the path of the needle, said spreader being also mounted on an oscillating support whose axis is inclined to the line of feed; substantially, as described.

3.In a sewing-machine, the combination with a reciprocating needle, a thread-carrydle, and a loo '-spreader with means. for oscillating it entirely below the fabric, to cause it to engage the needle-loop below the fabric and carry it to a point where the looper in its upward movement will pass therethrough,

said looper being mounted u on'an oscillatlng support whose axis is 'inc ined relative to Y the line of feed, and also to the plane of the throat-plate, whereby the thread-carrying looper may properly pass through the needleloop spread by the spreader and pass the needle diagonally felative'to the line of feed, and

diagonal to the axis of the thread-carrying looper; substantially as described.

4. In afsewing-machine, the combination with a reciprocating.needle, a thread-carrying looper, and a spreader, said thread-carrying looper being mounted upon a suitable oscil ating support,- whose axis is inclined rela tively to the line of feed and relative to the' plane of the throat-plate, whereby said thread carrying looper may pass through the needle-loop spread by the spreader and pass the needle diagonally relative tothe line of feeding, and lay its thread back of the path of the needle that its loop may" be engaged therewith, said spreader being also arranged upon an axis diagonal to the line of feed -and diagonal also to the axis of the looper,

whereby it Will engage the needle-thread and carry it across the pathof the looper; substantially as described.

5. In a sewing-machine, the combination with a reciprocating needle, a thread-carryfing'looper, and a spreader, said thread-carryin looper being mounted upon a suitable oscil ating support, whose axis is inclined relatively to the line of feed and relative to the plane of :the throat-plate, whereby said thread-carrying looper may pass through the needle-loop spread by the spreader and pass the needle diagonally relative to the line of feed, and lay its thread back of the path of the needle that its loop may be engaged therewith, said spreader being also arranged upon an axis diagonal to the line of feed and diagonal also to the axis of the looper, whereby it will engage the needle-thread and carry it across the path of the looper, said threadcarrying looper being provided with an offset; substantially as descrlbed.

6. In a sewing-machine, the combination with a reciprocating needle, a driving-shaft,

a looper coo crating with said needle to form stitches anc mechanism for operating said with a reciprocating needle, a driving-shaft,

a looper coo crating with said needle to form stitches, and mechanism for operating said looper, comprising an oscillating support for said looper' arranged entirely in front of the needle, the axis of said support being inclined relative to the line of feed and also to the plane of the throat-plate, with means for oscillating said support, comprising a lever pivoted to the machine-frame, extending diagonally across the bed of the machine to the front thereof, having a ball-and-link connection with the looper-supporting shaft, and at its opposite end or short arm arranged with an eccentric connectionjto the drivingshaft substantially as described.

8. In a sewing-machine, the combination with a reciprocating needle, a driving-shaft,

shaft, and a ball-and-link connection between the crank and the pivoted lever; substantially as described. V

In testimony whereof I allix my signature in presence of two witnesses.

LANSING ONDERDONK.

Witnesses W H. Boxes, 0. L. STURTEVANT. 

